Guide to MetaMask and Arbitrum Sepolia for Ethereum Development

This article guides developers on adding the Sepolia network to MetaMask for testing dapps and smart contracts on the Ethereum testnet. It also introduces Moralis, a Web3 API provider for building and testing dapps on Sepolia. Additionally, it explains how to claim testnet funds on Arbitrum Sepolia using a crypto faucet. Developers can explore improved speed, scalability, and reduced transaction costs through optimistic rollups on the Arbitrum network.